matrix-docker-ansible-deploy/roles/custom/matrix-element-call/tasks/update_element_web_config.yml

- name: Read Element Web config.json
  ansible.builtin.slurp:
    src: "{{ element_web_config_path }}"
  register: element_web_config_content

- name: Load JSON data from config.json
  ansible.builtin.set_fact:
    element_web_config: "{{ element_web_config_content['content'] | b64decode | from_json }}"

- name: Update Element Call configuration in config.json
  ansible.builtin.set_fact:
    updated_element_call_config: >
      {{
        {
          "element_call": {
            "url": "https://{{ matrix_element_call_domain }}",
            "participant_limit": 8,
            "brand": "Element Call",
            "use_exclusively": true
          },
          "features": {
            "feature_video_rooms": true,
            "feature_new_room_decoration_ui": true,
            "feature_group_calls": true,
            "feature_element_call_video_rooms": true
          }
        }
      }}
      
- name: Merge updated Element Call configuration with existing config.json
  ansible.builtin.set_fact:
    element_web_config: "{{ element_web_config | combine(updated_element_call_config, recursive=True) }}"

- name: Write updated Element Web config.json
  ansible.builtin.copy:
    content: "{{ element_web_config | to_nice_json }}"
    dest: "{{ element_web_config_path }}"
    mode: '0644'
    owner: "{{ matrix_user_username }}"
    group: "{{ matrix_user_groupname }}"